Live updates | UN warns of impeded aid deliveries as Israel expands offensive in Gaza

Fleeing Palestinians have packed into areas along Gaza’s border with Egypt and the southern Mediterranean coastline, where shelters and tent camps are overflowing. The U.N. humanitarian office says the scale and intensity of ground operations and fighting between Israeli forces and Palestinian armed groups and their devastating impact is impeding aid deliveries. The Israeli military’s air and ground offensive against Hamas has widened to most of the territory. Israel says it is striking militant targets, though homes full of people are regularly crushed. Israel’s leaders say the war could go on for months.